单词	表面磨耗
释义	表面磨耗surface abrasion
随便看	invariant assignment optimization invariant attraction set invariant average invariant basis property invariant bilinear function invariant boundary invariant central manifold invariant class of groups invariant code motion invariant codes invariant complement invariant cone invariant continuation invariant curve invariant cycle invariant decision function invariant decision problem invariant decomposition invariant definition invariant delta-function invariant derivative invariant differential invariant differential equation invariant differential form invariant differential operator